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CVE-2026-20083

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CVE-2026-20083

Published: Mar 25, 2026

Modified: Mar 27, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

A vulnerability in the Secure Copy Protocol (SCP) server feature of Cisco IOS XE Software could allow an authenticated, local attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed SCP request. An attacker could exploit this vulnerability by issuing a crafted command through SSH. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.

VendorProductVersions

Cisco

Cisco IOS XE Software

affected
3.5.0E
affected
3.5.1E
affected
3.5.2E
affected
3.5.3E
affected
3.11.1S

+312 more versions

Weaknesses (CWE)

CWE-235

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

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